Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu vien » hieu hien, hieu viec, thieu nien
thanh ca » thanh cha, thanh cac, thanh ha
va thanh » gia thanh, ban thanh, va tinh
vien cac » vien bach, vien dai, vien da
van hoi » van hoa, van hoc, van hoe
ky tang » ky nang, ky dang, kho tang
cac luc » cau luc, coc luc, cac nuoc
ky lang » ky nang, ky dang, tay lang
cua tre » cua te, cuu tre, dua tren
luc va » duc va, tuc va, loc va
vu sac » vu sach, vu san, va sac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ((ky lang) OR (ky tang)) van hoi. hieu vien cac luc va thanh ca ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ((ky lang) OR (ky tang)) van hoi. hieu vien cac luc va thanh ca ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ((ky lang) OR (ky tang)) van hoi. hieu vien cac luc va thanh ca ((cua tre) or (cua triet))*".